Clutch



H. C. NEViLLE.

CLUTCH.

APPucArron mso wu 26. ma.

Putvntvd Sept. 253, 19159.

HERBERT O. NEVILLE, F EAS?! MOIJNE, ILLINOIS.

CLUTCH.

Specication of Letters Patent.

Patented SeDt. 23. 1919.

Application med July 26, 1918. Serial No. 264,994.

To all whom it may concern Be it known that I, Hmmm C. NEVILLE, acitizen of the United States, residi at East Molin in the county of RockIs and and State o Illinois, have invented certain new and useful Imrovements in Clutches, of which the followmg is a specification.

This invention relates to clutches, and the primary object thereof is toprovide a clutch which will not slip.

Another. object is to so construct a clutch of this character in' whicha friction clutch is used to start the car or other object to be drivenand a solid or positive drive from the motor to the rear wheels rovided.

With the foregoing an other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that in the preciseembodiment of the invention herein disclosed may be made within thescope of what is claimed without depxarting from the spirit of theinvention.

the accompanying drawings Figure 1 represents a lo tudinal sectionpartly in slde elevation o a clutch constructed in accordance with thisinvention, parts being broken out,

Fig. 2 is a transverse section taken on the line 2-2 of Fig. 1 and Fig.3 is a detail.

In the embodiment illustrated, a center or drive shaft 1 is shown,polygonal in cross section being here shown square with a reducedrounded extension 2 on its front end to form a journal designed to enter'the ball 3 and which is designed to receive a pin 5. This pin 5 is desied to secure in position on the shaft a col ar 6 which extends radiallyfrom a sleeve 7 which encircles the shaft and through which the pin 5projects. This collar 6 also has a flan e 8 extendin therefromconcentric with t e shaft 1 an is designed to take the end thrust of theclutch transmitt' it to a thrust ball race 9 arran at t e rear of collar6.

e transmission case, not shown, is designed to be arranged behind theball race 9, while the y wheel of the automobile is designed to supportthe journal 2. A dog clutch 10 is adapted to be fitted on the fly wheel,counter-sunk seats 11 being provided in said clutch member to receivebolts for securing said member to the iy wheel.

A sleeve 12 encircles the front end of shaft 1, being broached to fitthereon, or splined or keyed to said shaft to permit it to slide thereonand yet prevent it turning relatively thereto. This sleeve 12 carries atits front end a eoperating d clutch 13 for interlocking'e gement withthe clutch member 10 carri by the fly wheel as is shown clearly in Fig.1 and which forms the ositive connection between the driving aft and thedriven shaft. This sleeve 12 is also a ertured for the passage ,of in 4so that wllien said in is moved the s eeve will be reciprocatelongitudinally on the shaft, the extent ofmovement being limited by thelen h of slot 3.

other sleeve 14 closely encircles sleeve 12 and is slidably mounted onsaid sleeve on splines breached to lit those on the outside of sleeve12. This sleeve 14 has a slot 15 similar to the slot 3 in lshaft 1 throh which the pin 4 projects. This sleeve is a so threaded at the rear ofsaid slot 15 as shown atV 16, and on this threaded portion are mountedlar nuts 17 in the form of rings, two of whic are here shown operatingtother. A third nut 18, similar to nuts 17 as threaded en ment with thesleeve 14 and coperates with a nut 19 L-shapcd in cross section, theflan 20 of which is arranged ooncentric wi shaft 1 and sleeve 14 and isdesigned to form a seat for a coiled clutch sprin 21, the other end ofwhich is mounted in t e sleeve formed by the flange 8 of collar 6 as isshown clearly in F ig. 1.

The two nuts 17 are designed to maintain the adjustment of sleeve 14relatively to sleeve 12, while those 18 and 19 are designed forincreasing or reducing the tension of the clutch spring 21.

The sleeve 14 has a radially extend-ing flange 14 at its front end, andto this flan 'e is designed to be bolted a friction clutci, which ma beof any desired construction, being pre erably in the form of aleatherfaeed cone 14.

The rear end 22 of the sleeve 14 is tapered so that the sprin 21 willnot interfere with the sleeve when t e spring is depressed.

'A collar 23 is mounted on the outside of sleeve 14 and is held in placeby the pin 4 and supports a ball race 24 composed of three rings 25, 26and 27 which are held in assembled position by a collar 28 which hasthreaded engagement with the collar 23 on the periphery thereof, and isprovided at its other end with an inturned flange 29.

The pin 5 is similarly held in position by the thrust race 9 whichprevents said pin from slipping transversely through the shaft.

A heavy coiled spring 30 eneircles the rear end of shaft 1, engaging atits front end with the rear end of sleeve 12, and at its rear end thecollar 6, and exerts its tension to retain the clutch members 10 and 13tightly in operative engagement.

A pair of clutch levers 31 mounted on a shaft 32 are positioned forcoperation with the thrust ball race 24, and when de ressed by thedriver will operate `to move t e ball race 24 forward, carrying with itthe collar 23 and the dog clutch member 13. When the teeth of the twodog clutches 10 and 13 are disengaged, the two adjusting ring nuts 17are engaged by the collar 23 and are carried back with said collar,thereby releasing the cone clutch from the fly wheel. Obviously, whenthe clutch is let in the reverse action will occur, and said cone clutchwill first take the drive and after the collar 23 leaves the nuts 17,the positive clutches 10 and 13 will come into engagement. The tensionon the clutch proper is not necessarily as tight as the conventionalform of clutch, and `in fact need be only a trifle tighter than aslipping contact, since the positive clutches 1 an 13 perform all thehard work.

From the above description it will beobvious that the cone clutchcarried by the flange 14 will be used to start the car and the drivingthereof will be accomplished by the clutches 10 and 13 giving a soliddrive from the motor to the rear wheels, and preventing,r allpossibility of the slipping of the clutch.

The foregoing description and the drawings have reference to what may beconsidered the preferred or ap roved form of my invention. It is to beundJerstood that I may make such changes in construction and arrangementand combination of parts, materials, dimensions, etc, as may proveexpedient and fall within the scope of the claimed invention.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is:-

l. In a clutch of the class described, the combination of a shaft havinga longitudinally disposed slot extending therethrough, a pin mounted toreciprocate 1n said slot and projecting at its ends beyond said shaft,another pin extending transversely through said shaft at a point spacedfrom said first mentioned pin, a thrust collar secured by saidsecond-mentioned pin and having a fiange concentric with said shaft toform a spring housing, a ball race atI the rear of said collar toreceive the thrust therefrom and to hold said pin in position, a sleevekeyed to slide on said shaft, a clutch member fixed to said sleeve,l afly wheel rotatably supportingsad shaft and having friction and positiveclutch members, the latter t0 coperate with said sleeve carried clutchmember and form a positive connection between said wheel and shaft,another sleeve slidable on said shaft engaging sleeve with a slotregistering with the shaft slot through which and said first-mentionedsleeve said first-mentioned pin extends, a friction clutch membercarried byi the outer sleeve adapted to coperate with the frictionclutch member on the fly wheel, springs engaging said sleeves and thrustcollar to hold the clutches engaged, and means for releasing first thepositive clutch and then the friction clutch.

2. The combination with a driving member and a driven shaft, a positiveclutch member carried 'by the driving member, the driven shaft having alongitudinal slot extending therethrough and an aperture extending inthe same direction and spaced from the slot, pins mounted in said slotand aperture with their ends projectin beyond the shaft, one of saidpins being xed and the other slidable relatively to the shaft, acombined spring housingand thrust collar secured by said fixed pin, asleeve mounted to slide on said shaft and having an aperture throughwhich the sliding pin extends, a positive clutch member carried by saldsleeve, another sleeve slidable on the firstmentioned sleeve and havingr 'storing slots to receive the sliding pin, a. e0 at carried by saidouter sleeve with e bell race sleeve whereb rst the positive clutch is10 holding' said pin in operative position, nuts released and t en thefriction clutch. ndjustnbly mounted on said outer sleeve, one Intestimony whereof I aix my signature huvllll n Bange to fom a. springhulng, in presence of two witnesses.

a coi spring mounte to engage sai ousings and to project the outersleeve into op- HERBERT C NEVILLE' erative position, a similar springmounted Witnesses:

on the shaft to project the first-mentioned G. E. Molumousm,

sleeve, and means for moving said outer H. W. YOUNG.

